Finding the Third Proportional to 228,100.50 and 357,816

Step by Step Solution

1. Step 1: Write the proportion equation
   228,100.50 : 357,816 = 357,816 : x
2. Step 2: Convert to fraction form
   228,100.50/357,816 = 357,816/x
3. Step 3: Cross multiply
   228,100.50x = 357,816 × 357,816
4. Step 4: Simplify right side
   228,100.50x = 128,032,289,856
5. Step 5: Solve for x
   x = 128,032,289,856/228,100.50
6. Step 6: Final answer
   x = 561,297.72